Home / 39,876,161,562.81-55,028,455,452.18-21,811,519,757.16

Finding the Fourth Proportional to 39,876,161,562.81, 55,028,455,452.18 and 21,811,519,757.16

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Solution

The fourth proportional to 39,876,161,562.81, 55,028,455,452.18 and 21,811,519,757.16 is: 30,099,543,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,876,161,562.81 : 55,028,455,452.18 = 21,811,519,757.16 : x
  2. Step 2: Convert to fraction form
    39,876,161,562.81/55,028,455,452.18 = 21,811,519,757.16/x
  3. Step 3: Cross multiply
    39,876,161,562.81x = 55,028,455,452.18 × 21,811,519,757.16
  4. Step 4: Simplify right side
    39,876,161,562.81x = 1,200,254,243,301,223,038,976
  5. Step 5: Solve for x
    x = 1,200,254,243,301,223,038,976/39,876,161,562.81
  6. Step 6: Final answer
    x = 30,099,543,091.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.